be famous for,be well- know,for be popular for之间的区别

e famous for因……而著称（出名）；以……著名；
So what? A very fat, remember? And famous for his commercials on television.
这又怎么样呢,一个很胖的,著名的人因为电视广告出名.
应该是：
be well-known for 因……而著名（出名）；以……著名；
He is well-known for his knowledge in geography.
他以在地理方面的广博知识而闻名.
be popular for： 因…受欢迎
Besides being a painter, Chen is equally popular for his writings.
陈丹青除了身为一名画家,还是很受欢迎的作者.